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载体对Au/BN催化剂苯甲醇选择性氧化性能的影响

畅通 马瑞婧 宋昌

畅通, 马瑞婧, 宋昌. 载体对Au/BN催化剂苯甲醇选择性氧化性能的影响[J]. 燃料化学学报(中英文), 2022, 50(1): 109-113. doi: 10.19906/j.cnki.JFCT.2021060
引用本文: 畅通, 马瑞婧, 宋昌. 载体对Au/BN催化剂苯甲醇选择性氧化性能的影响[J]. 燃料化学学报(中英文), 2022, 50(1): 109-113. doi: 10.19906/j.cnki.JFCT.2021060
CHANG Tong, MA Rui-jing, SONG Chang. Effect of support factors on the selective catalytic oxidation of benzyl alcohol over Au/BN catalyst[J]. Journal of Fuel Chemistry and Technology, 2022, 50(1): 109-113. doi: 10.19906/j.cnki.JFCT.2021060
Citation: CHANG Tong, MA Rui-jing, SONG Chang. Effect of support factors on the selective catalytic oxidation of benzyl alcohol over Au/BN catalyst[J]. Journal of Fuel Chemistry and Technology, 2022, 50(1): 109-113. doi: 10.19906/j.cnki.JFCT.2021060

载体对Au/BN催化剂苯甲醇选择性氧化性能的影响

doi: 10.19906/j.cnki.JFCT.2021060
基金项目: 山西省教育厅高校科技创新项目(2020L0561)和运城学院(QZX-2019006)资助
详细信息
    作者简介:

    畅通:changtongct@163.com

    通讯作者:

    Tel: 0351-4084072, E-mail: songchang@sxicc.ac.cn

  • 中图分类号: TQ530.2

Effect of support factors on the selective catalytic oxidation of benzyl alcohol over Au/BN catalyst

Funds: The project was supported by the research funding of Shanxi Provincial Education Department (2020L0561) and Yuncheng University (QZX-2019006)
More Information
  • 摘要: 本研究以三种不同结构特点的氮化硼(BN)充当载体,负载Au纳米颗粒进行苯甲醇选择性氧化反应,发现载体的结晶性、比表面积对活性相Au的尺寸具有显著影响。Au/BN500的比表面积是晶化程度高的Au/BN600、Au/BN700催化剂的四倍以上。相较于Au/BN700而言,Au/BN500催化剂Au纳米颗粒具有更好的分散性以及更小的粒径(13 vs. 3.2 nm),且Au/BN500的活性是其他催化剂的两倍,但其催化活性在5 h以内有30%左右的流失。
  • FIG. 1243.  FIG. 1243.

    FIG. 1243.  FIG. 1243.

    图  1  三种BN基催化剂的X射线粉末衍射谱图

    Figure  1  X-ray powder diffraction patterns of the Au/BN500, Au/BN600 and Au/BN700

    图  2  三种催化剂的形态结构

    Figure  2  Transmission electron microscopy characterizations of three catalysts

    (a), (b): Au/BN500, (c), (d): Au/BN600 (e), (f): Au/BN700 low-magnification and high-magnification electron spectroscopies are shown in left and right column, respectively,the illustration of Figures (b), (d) and (f) show the statistical distribution of particle size

    图  3  三种催化剂的N2吸附-脱附等温曲线

    Figure  3  N2 gas adsorption isotherms of three as-prepared catalysts

    图  4  三种Au/BN催化剂以模拟空气为氧化剂,选择性催化氧化苯甲醇制备苯甲醛

    Figure  4  Catalytic performance of three Au/BN catalysts in selective oxidization of benzyl alcohol to synthesize benzaldehyde

    from top to bottom (■): Au/BN500, (●): Au/BN600, (▲): Au/BN700, where the black dotted line represents conversion rate and blue dotted line denotes selectivity as function of time

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出版历程
  • 收稿日期:  2021-03-19
  • 修回日期:  2021-05-17
  • 网络出版日期:  2021-06-16
  • 刊出日期:  2022-01-25

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